/*!
 * \file serial/impl/windows.h
 * \author  William Woodall <wjwwood@gmail.com>
 * \author  John Harrison <ash@greaterthaninfinity.com>
 * \version 0.1
 *
 * \section LICENSE
 *
 * The MIT License
 *
 * Copyright (c) 2012 William Woodall, John Harrison
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * \section DESCRIPTION
 *
 * This provides a windows implementation of the Serial class interface.
 *
 */

#if defined(_WIN32)

#ifndef SERIAL_IMPL_WINDOWS_H
#define SERIAL_IMPL_WINDOWS_H

#include "../serial.h"

#include "windows.h"

namespace serial {

using std::string;
using std::wstring;
using std::invalid_argument;

using serial::SerialException;
using serial::IOException;

class serial::Serial::SerialImpl {
public:
  SerialImpl(const string &port, unsigned long baudrate, bytesize_t bytesize,
             parity_t parity, stopbits_t stopbits, flowcontrol_t flowcontrol);

  virtual ~SerialImpl();

  void open();

  void close();

  bool isOpen() const;

  size_t available();

  bool waitReadable(uint32_t timeout);

  void waitByteTimes(size_t count);

  size_t read(uint8_t *buf, size_t size = 1);

  size_t write(const uint8_t *data, size_t length);

  void flush();

  void flushInput();

  void flushOutput();

  void sendBreak(int duration);

  void setBreak(bool level);

  void setRTS(bool level);

  void setDTR(bool level);

  bool waitForChange();

  bool getCTS();

  bool getDSR();

  bool getRI();

  bool getCD();

  void setPort(const string &port);

  string getPort() const;

  void setTimeout(Timeout &timeout);

  Timeout getTimeout() const;

  void setBaudrate(unsigned long baudrate);

  unsigned long getBaudrate() const;

  void setBytesize(bytesize_t bytesize);

  bytesize_t getBytesize() const;

  void setParity(parity_t parity);

  parity_t getParity() const;

  void setStopbits(stopbits_t stopbits);

  stopbits_t getStopbits() const;

  void setFlowcontrol(flowcontrol_t flowcontrol);

  flowcontrol_t getFlowcontrol() const;

  void readLock();

  void readUnlock();

  void writeLock();

  void writeUnlock();

protected:
  void reconfigurePort();

private:
  wstring port_; // Path to the file descriptor
  HANDLE fd_;

  bool is_open_;

  Timeout timeout_;        // Timeout for read operations
  unsigned long baudrate_; // Baudrate

  parity_t parity_;           // Parity
  bytesize_t bytesize_;       // Size of the bytes
  stopbits_t stopbits_;       // Stop Bits
  flowcontrol_t flowcontrol_; // Flow Control

  // Mutex used to lock the read functions
  HANDLE read_mutex;
  // Mutex used to lock the write functions
  HANDLE write_mutex;
};
}

#endif // SERIAL_IMPL_WINDOWS_H

#endif // if defined(_WIN32)
